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Finding the Fourth Proportional to 980,405.56, 1,469,336.86 and 440,263

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Solution

The fourth proportional to 980,405.56, 1,469,336.86 and 440,263 is: 659,823.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,405.56 : 1,469,336.86 = 440,263 : x
  2. Step 2: Convert to fraction form
    980,405.56/1,469,336.86 = 440,263/x
  3. Step 3: Cross multiply
    980,405.56x = 1,469,336.86 × 440,263
  4. Step 4: Simplify right side
    980,405.56x = 646,894,653,994.18
  5. Step 5: Solve for x
    x = 646,894,653,994.18/980,405.56
  6. Step 6: Final answer
    x = 659,823.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.